Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 325mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke325 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20
The AirTAC SAIJ200X325-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 20 mm, creating a precise 305-325 mm usable stroke window. Built with a SUS304 stainless steel rod and PT tapered port threads, it delivers massive thrust up to 15080 N pull at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
This 200 mm bore actuator provides a maximum holding force of 3204 kgf at 1.0 MPa, making it suited for heavy-duty pressing and clamping. The rear adjustment screw functions strictly as a travel stop for end-position tuning during commissioning; it is not a locking mechanism. For applications requiring true load-holding without live air pressure, an external rod lock or related SAIL and BSAI series cylinders are required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 325 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×325 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20 Is Used
Heavy Press Tuning
Dial in the exact 305-325 mm retraction stop during machine setup to accommodate varying material thicknesses in heavy pressing operations.
Product Changeover
Quickly adjust the end-stop position for different product sizes on a high-force assembly line without physically swapping out the entire cylinder.
Large Assembly Jigs
Provide massive clamping force up to 3204 kgf while retaining the ability to fine-tune the travel end for large-scale industrial fabrication jigs.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20 the Right Cylinder?
Choose this 200 mm bore model when your process demands extreme force, such as 15080 N pull at 0.5 MPa, and requires fine-tuning the retraction end without adding external physical stops. If you need slightly less force, stepping down to a 160 mm bore yields 9425 N of pull force at the same pressure. The rear adjuster allows rapid product changeovers by dialing in the 305-325 mm travel window. It uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets.
Because the 325 mm stroke is substantial and the 40 mm rod carries high side-load capacity, you should still use an external guide to prevent binding over long unsupported travel. The PT tapered ports and SUS304 rod are configured for this exact SKU. Since the -S magnet option is not specified here, you must add it if you require solid-state DMSE or reed CMSE sensor feedback.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX325-20 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At its maximum rated pressure of 1.0 MPa, it can deliver a holding force of up to 3204 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 325 mm nominal stroke by up to 20 mm, giving a usable travel window of 305 to 325 mm. This allows precise end-position tuning during commissioning without needing to swap the cylinder.
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